Gas-burner.



F. H. OBHLKB.

GAS BURNER.

APPLIUATION FILED DBO. 2a. 1913.

1, 1 14,021 Patented Oct. 20, 1914.

2 SHEBTS-SHEET l.

I "IIIIIIIIIIIII////J w A G Q R I k THE NORRIS PETERS 60., FHOTO-LITHQ,WASHINGTON. D. C

P. H. OEHLKE.

GAS BURNER APPLICATION FILED DEO.23, 1913.

1,]. 1&0 1. Patented 0011.20, 1914.

2 SHEETSSHEET 2.

R5 CQ, PHUTO-LITHCL, WASHINGTON. D. C.

UNITED STATES oFF c FREDERICK I-I. OEHLIKE, oFLoRaIN, mannerisms mi;norriviiin nnnirnn COMPANY, or LORAIN, onxo a FO RIfQIRfATIONn aGas-summit,

Specificationofhettersl'atent. Pg't flt'a b 20, 914,

Application filed December as; 1913. fseriai m3. 8085358. I.

To all whom itmag concern: i Be it known that I. FREDERICK H.

Lorain, in the county ofLorain and State of Ohio, have inventedcert'ain,new and use-I 'ful Improvements in Gas-Burners, of which i the followingis a specification. Thls invention relates to gas burners and isespecially adapted for use in connection with water heaters and thelike,in which as a rule a number of burners are nested or placed adjacent toeach other under the coil or other Water vessel. The burner is of coursecapable of other uses if desired.

The object of the invention is to provide an improved burner of thesafety diaphragm type, which will not flash back, and inWhich thediaphragm will be protected from contact of the flame therewith, thediaphragm being covered by a shield, with passages leading to a slot atwhich ignition takes place, so that thegas does not burn in directcontact with the diaphragm. i

A further object of the invention is to provide a burner which will havethe advantage of the flat type, that is, a number of burners can be setclose together, retain ing however the use of a circular diaphragmthrough which the air andgas flows, said diaphragm being protected fromthe destructive action of the heat. The construction is such that thediaphragm can be easily renewed or replaced when necessary, by takingofi a cap at the top of the burner.

The invention is illustrated in the accompanying drawings in whichFigure 1 is a side View of the burner. Fig. 2 is a top View. Fig. 3 is avertical section on the line 33 of Fig. 2. Fig. 4c is a section on theline H of Fig. 1. Fig.

5 is a section on the line 5--5 of Fig. 1. Fig."

6 is a vertical section of a modification.

Referring specifically to the drawings, 6

indicates a mixing tube which has a" bell at the lower end into whichthe gas nipple 8 projects, the bell having openings indicated at 9 atthe bottom, to admit the air to the mixingtube, where it mixes with thegas. The upper part of theltube connects with a shell 6 which has hollowflattened lateral extensions 10 at opposite sides,which give the burnera relatively fiat or elongated shape.

The cap 11 is substantially Vshaped in cross section, to provide outletson opposite i sides the'reofx This cap has ea the outer ,EHLKE, acitizen of the United States, residing at.

surfaceofits inclined sides a plurality of vertical ribs withspaces'orchannels 14: therebetween. The lower ends of these ribs 13 reston the upper edges or margin of the shell 6 and its extensions 10, andthe grooves or channels 14 are-sufiiciently deep to form outlets fromthe space within the burner head hThe ribs are continued orextendedbelow the base of the cap'to form cross ribs or lugs 15*which fitbetween the side walls of the extensions 10, and so positionthecap onthe burner head. The middle part of the cap is expanded or extended tosubstantially circular form, as indicated" at 16, to correend of theshellor casing, said expanded or curved part being also 'providedwiththe of the 1- top of the 1 burner! head," lacking the extensions 1 5.011the ribs whichwrest upon 2 0 and has the form of a cylinderthe lower endof which rests on a shoulder21yatthe upper end of the mixing tube 6.,Above this shoulder the shell is enlarged as indicated at 6 v forminganannular chamber which surrounds the diaphragm 20, this chambercommunicating with the interior of the lateralextensions or wings 10. ga 1 v In the form shown in Figs. 1 to 5 inclusive, the lower part of thecap 11 has at the middle thereof a depending circular part or boss 22which is reduced as indicated at 23, the reduced part fitting withintheupper end of the cylindrical diaphragm 20, thediaphragm being thussupported and held in centralposition by the boss 22 at the to spendwith the curvedshape ofthe upper I ribs 13 which, however,.terminateatthe line top and the shoulder 21 at the bottom. The a gasand air passingup throughthe tube 6 -fiows through the diaphragm into the annularchamber 6 and the lateral wings 10, from. which it passes up through thegrooves 14, combustion taking place where it issues over thelip or edgeof the shell. ,Theupper end of the diaphragm 20 is located below i saidedge and consequently combustion does not take place in contact with thediaphragm, but at the point of exit between the boss 22 the underside ofthe tap; as a the ribs 13, at-opposite sides of the burner.

In the form shownin Fig. 6, inste'drof f recess surrounded by adepending flange 25,

WlthiIi which the upper end of the dianeverthelessbeassembled' or setquite. closef phragm' fits and is held.' g I lVith either form" ofburner'the cap can be removed by taking out the screws 17 and liftingthe cap, and the diaphragm Will come with it, or can be picked out atthe to As stated abovethe extensions '10 provide a large outlet space,and the burners can "together if necessary .or desirable.

. I claim as my invention:

.1. A gas burner having a hollow fiattenedf elongated shell with anenlarged chamber at the middle, a'cap on said shell with dischargeopenings at opposite sides thereof, a mixing tube opening into saidchamber, and a hollow perforated cylindrical diaphragm connecting at itslower end to the upper end of the tube, said cap having a projection onits under side engaging cd ies'of this patent my be o ta for dependinginto the shell and engaging the upper end of the diaphragm.

3. A gas burner comprising an elongated shellenlarged at the middle, ahollow perforated diaphragm located in said enlarged part, and spacedfrom the walls thereof, and

a cap over the shell, having ribs on opposite sides thereof resting onthe shell and forming discharge grooves between the ribs, said caphaving depending ribs on the under side thereof, fitting within theshell, and also having a projection at the middle engaging saiddiaphragm.

4. A gas burner of the flat type, comprising an elongated flattenedshell provided with an enlarged chamber at the middle, a mixing tubecommunicating with said chamber, said shell having outlet openings atopposite sides of the top, a cap upon said shell, and a tubularperforated diaphragm located within said middle chamber and spacedtherefrom entirely around the same,

five cents each, by addressing the Commissioner of Patents,

Washington, .D. G.

